how to fix PO156 error code after replacing sensor

Question

I have replaced the Bank2 Sensor 2 and the Chk engine light still on with the same code

Answer 1

HI there

Exhaust leaks, fuel pressure and bad fuel injectors on that bank can cause the code to appear. You could also have an issue with the wiring as well.

P0156 FORD - O2 Sensor Circuit Malfunction Bank 2 Sensor 2

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